Cisco ASA Firewall Security Technical Implementation Guide
Rules, Groups, and Values defined within the XCCDF Benchmark
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The Cisco ASA must be configured to generate traffic log entries containing information to establish when (date and time) the events occurred.
Without establishing when events occurred, it is impossible to establish, correlate, and investigate the events leading up to an outage or attack. In order to compile an accurate risk assessment, ...Rule Medium Severity -
SRG-NET-000089-FW-000019
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SRG-NET-000098-FW-000021
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The Cisco ASA must be configured to use TCP when sending log records to the central audit server.
If the default UDP protocol is used for communication between the hosts and devices to the Central Log Server, then log records that do not reach the log server are not detected as a data loss. The...Rule Medium Severity -
SRG-NET-000131-FW-000025
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The Cisco ASA must be configured to disable or remove unnecessary network services and functions that are not used as part of its role in the architecture.
Network devices are capable of providing a wide variety of functions (capabilities or processes) and services. Some of these functions and services are installed and enabled by default. The organiz...Rule Medium Severity -
SRG-NET-000205-FW-000040
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The Cisco ASA perimeter firewall must be configured to filter traffic destined to the enclave in accordance with the specific traffic that is approved and registered in the Ports, Protocols, and Services Management (PPSM) Category Assurance List (CAL) and vulnerability assessments.
The enclave's internal network contains the servers where mission-critical data and applications reside. Malicious traffic can enter from an external boundary or originate from a compromised host i...Rule Medium Severity -
SRG-NET-000333-FW-000014
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The Cisco ASA must be configured to send log data of denied traffic to a central audit server for analysis.
Without the ability to centrally manage the content captured in the traffic log entries, identification, troubleshooting, and correlation of suspicious behavior would be difficult and could lead to...Rule Medium Severity
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